Feeling really stupid...

Hiya again
Have you ever felt really stupid because you confused two things? If not, go away. If yes, you might want to read on.
I spent a weekend in Edinburgh and was really looking forward to staying at a lovely, new Guest House in the New Town. I checked my handwritten booking notes at home and made a note of the phone number, just in case. When I arrived at Edinburgh Waverley station I got a taxi to the Ben Cruachan Guest House on MacDonald Road. And stood outside a closed door, closed windows, no lights on -- nothing. Nonplussed, I waited for a moment, then called. Answering machine. I left a message, hoping someone would call me back. Nothing. I walked up and down the street to make sure I was in the right place. I was. Called again, left another message saying I considered our contract null and void seeing as they were not open. And went to one of the much cheaper but also much naffer B&Bs next door.
I was upset, but one is not one to mope, and I found other ways of making a good weekend of it. And if my eyes were insulted by the décor and "decorations", at least the bed in the cheaper place was really comfy, with a good, firm mattress. And I actually had one really, really good night's sleep there, the first in months!
This evening, I get a phone call from someone asking me whether I was ok. I was rather surprised -- it's not every day that a perfect stranger asks me that question, much less on the phone.
Well, it turns out that this very pleasant man is the owner of the Queens Guest House, also in Edinburgh New Town, and within fairly easy walking distance of the Ben Cruachan. And it further turns out that he was holding my lovely room for me for the two nights that I had booked with him.
How I could have made the confusion I will never know. How I didn't write down his establishment -- I have not a trace of his place, neither in my memory nor on my notes for the whole weekend -- I will never know.
All I know is that, whichever of the two it would have been, I'd have had a far better couple of nights than in the other place, and -- in the end -- a cheaper time of it. Because not only did I pay a hundred quid for the two nights and breakfasts at the B&B, I am now also having to pay -- of course -- for the room held for but never used by yours truly.
Might as well have tossed the money out the window, eh?
Reminds me of another time when I was seriously sleep deprived and lost my ticket at Vienna train station one very cold Easter Monday evening. I didn't realise and ended up having to pay a full single fare from Vienna to Bern, plus a penalty for being on the train without a ticket.
It also reminds me of a time in my three-month stay in Spain. I had come down to Barcelona from a two-month summer residence course in the Pyrenees, during which I got a maximum of four hours' sleep a night. One morning I waited at Barcelona train station for a friend who had come all the way from Switzerland to join me for a couple of weeks of travelling about Spain with me. But I had got her arrival time wrong (German/Spanish, like German/English, turn hours backwards/forwards). Nor had I, as promised, sent her my phone number and she ended up waiting for me at the station for a whole day. I looked all over the place for her, but not for long enough, and went back to my house to wait for her call which, of course, never came -- and she travelled back to Switzerland that same evening. I still mourn that friendship, some thirty years later...
So, I suppose I need to re-learn the lesson that, a) I'm not infallible (which, of course, I think I am -- almost always) and, b) that I need to find a new home where I can actually sleep as much as I need.